<x-row space="1">
  <x-col span="24">
    <table>
      <tr>
        <th width="100">层级</th>
        <th>字体大小</th>
      </tr>
      <tr [style.font-size.rem]="0.75">
        <td>辅助文字</td>
        <td>0.75rem Extra Small</td>
      </tr>
      <tr [style.font-size.rem]="0.825">
        <td>正文（小）</td>
        <td>0.825rem Small</td>
      </tr>
      <tr [style.font-size.rem]="0.875">
        <td>正文</td>
        <td>0.875rem Base</td>
      </tr>
      <tr [style.font-size.rem]="1">
        <td>小标题</td>
        <td>1rem Medium</td>
      </tr>
      <tr [style.font-size.rem]="1.125">
        <td>标题</td>
        <td>1.125rem large</td>
      </tr>
      <tr [style.font-size.rem]="1.25">
        <td>主标题</td>
        <td>1.25rem Extra large</td>
      </tr>
    </table>
  </x-col>
</x-row>
